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The 10 Best Automotive Replacement Catalytic Converters to Buy – March 2021 edition

Looking for the best Automotive Replacement Catalytic Converters?

Discover now our comparison of the best Automotive Replacement Catalytic Converters. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Catalytic Converters are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Catalytic Converters in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1
MAYASAF Catalytic Converter [2.4L Models Only] for Chevy 2010-14 Equinox LS/LT/LTZ, 2012-15 Captiva Sport LS/LT/LTZ, for GMC 2010-14 Terrain Denali/SLE/SLT, EPA Compliant
  • 【Fitment】for Chevy Captiva Sport LS/LT/LTZ 2.4L 2012-15, for Chevy Equinox LS/LT/LTZ 2.4L 2010-14, for GMC Terrain Denali/SLE/SLT 2.4L 2010-14.
  • 【Non-CARB Compliant】Illegal for use on vehicles required to meet California emission standards. ITEM NOT SALE IN CA & NY.
  • 【EPA CERTIFIED】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Make sure this item fits your vehicle first, thanks a bunch!
  • 【High Quality & Flow】Meet or exceed OEM standards. Made from HD-Stainless steel, High flow design to provide more oxygen to your engine for an increase in power and performance, fully tested under the extreme conditions for heat resistance and service life.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping by UPS/USPS/Amazon shipping, kindly contact us first if you have any problems, let's make it right!
No. 2
MAYASAF 2.5" Inlet/Outlet Universal Catalytic Converter, with O2 Port (EPA Compliant)
  • 【Fitment】Universal for vehicles with 2.5 inches outer diameter exhaust pipe. Cutting and welding may require, professional installation is highly recommended.
  • 【Non-CARB Compliant】Illegal for use on vehicles required to meet California emission standards. ITEM NOT SALE IN CA & NY.
  • 【EPA CERTIFIED】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Make sure this item fits your vehicle first, thanks a bunch!
  • 【High Quality & Flow】Meet or exceed OEM standards. Made from HD-Stainless steel, High flow design to provide more oxygen to your engine for an increase in power and performance, fully tested under the extreme conditions for heat resistance and service life.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping by UPS/USPS/Amazon shipping, kindly contact us first if you have any problems, let's make it right!
No. 3
MagnaFlow California Grade CARB Compliant Manifold Catalytic Converter 452864
  • CALIFORNIA OBDII COMPLIANT: MagnaFlow has put this catalytic converter through extensive testing in order to make sure that it meets or exceeds CARB (California Air Resources Board) OBDII requirements for legal use in California and CARB restricted states on certified vehicles.
  • KEEP THE CHECK ENGINE LIGHT OFF: This MagnaFlow catalytic converter has been engineered to satisfy the vehicle computer control monitoring requirements for the specific applications listed. Such exacting standards keep the check engine light off while guaranteeing reliable long-term performance.
  • PREMIUM CONSTRUCTION: The utilization of highly corrosion resistant construction and MagnaFlow’s cutting-edge CNC precision robotic manufacturing techniques ensure consistently perfect fitment, reliable performance and superior longevity.
  • 5 YEAR / 50,000-MILE LIMITED WARRANTY: Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and emissions warranty included with this MagnaFlow catalytic converter.
  • DIRECT-FIT: The direct-fit configuration of this catalytic converter allows it to function as a bolt-on replacement, enabling hassle-free installation. MagnaFlow utilizes state-of-the-art 3D scanning technology during the research and development process to ensure that this new converter will fit and function exactly like the original equipment. Necessary installation hardware and/or gaskets are included.
No. 4
AUTOSAVER88 Catalytic Converter Compatible with GMC Acadia, Buick Enclave, Chevy Traverse, Saturn Outlook 3.6L 2009-2017 Radiator Side/Bank 2 (EPA Compliant)
  • AUTOSAVER88 direct-fit high flow catalytic converter is designed to meet or even exceed OE quality and performance standards without sacrificing flow rate.
  • Features heavy-duty stainless steel outer shell construction for maximum durability. The internal substrates and precious metal loading have been carefully engineered for maximum efficiency and to avoid MIL (Malfunction Indicator Lamp) code issues that are common with lower quality converters.
  • The standard OE specification flanges are designed for easy installation, direct bolts to existing exhaust system without doing extra modification (comes with gasket and hardware).
  • Genuine federal EPA certification and OBDII compliant, every catalytic converter is stamped with an exclusive EPA number on the shell. Federal EPA certificated catalytic converters are backed 5 years or 50,000 miles limited warranty.
  • Vehicle Fitment: Compatible with GMC Acadia / Buick Enclave / Chevy Traverse / 2009-2010 Saturn Outlook 3.6L 4-Door SUV Radiator Side / Bank 2, please check product description page below for more references.
No. 5
DNA Motoring OEM-CONV-044 3Pcs Factory Style Catalytic Converter Exhaust Pipe
  • Made of High Quality Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
  • Durable Catalyst Material, OEM Style Replacement
  • EPA OBD-II Approved
  • For use with Federal Emissions Models
  • NOT Legal for sale or Use in California, New York, Or Maine Emissions Models
No. 6
DURA LUBE Severe Catalytic and Exhaust Treatment Emissions Test Catalytic Cleaner 16 fl. oz, 1 Pack, HL-402409
  • Use when warning light is activated
  • Use before or prior to replacing catalytic converter
  • Protects catalytic system from oil poisons
  • Reduces phosphorus and zinc retention levels at catalyst inlet
  • Lowers tail pipe emissions
  • Fit type: Universal Fit
No. 7
MAYASAF Catalytic Converter w/Gasket Fit 2003 2004 2005 2006 2007 HONDA Accord 2.4L L4 (EPA Compliant)
  • 【Fitment】for HONDA Accord 2.4L L4 2003 2004 05 06 07 .
  • 【EPA Certified】Backed in 5 years or 50,000 miles limited warranty.
  • 【Non-CARB Compliant】 Illegal for use on vehicles required to meet California emission standards. Not ship to CA and NY.
  • 【High Quality & Flow】Converter body made from HD-Stainless steel, Internal structure is carefully designed and tested, Meet or exceed OE standard.
  • 【Worry-free Aftermarket】Well-packaged and free shipping by UPS/USPS/Amazon shipping, kindly contact us first if you have any problems with this item, let's make it right!
No. 8
Walker 80907 CalCat Pre-OBDII Universal Catalytic Converter
  • CARB COMPLIANT -- For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
  • SUPERIOR TECHNOLOGY -- Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
  • CONSISTENT PERFORMANCE -- Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
  • DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
No. 9
WATERWICH Compatible with Catalytic Converter Nissan Altima 2.5L 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Direct-Fit Stainless Steel High Flow(EPA Compliant)
  • [ COMPATIBLE VEHICLES] - Compatible with Nissan Altima Base L4 2.5L 2007-2016 . Compatible with Nissan Altima S L4 2.5L 2007-2016 . Compatible with Nissan Altima SL L4 2.5L 2010-2016. Compatible with Nissan Altima SR L4 2.5L 2016 . Compatible with Nissan Altima SV L4 2.5L 2013-2016.
  • [ Direct Fit Design] - This is new OE fit catalytic converter. The Oxygen Sensor Included, Flange to Flange Design, Direct Fit Design Bolts to Existing Exhaust without doing extra modification. And comes with gasket and all hardware needed make it match more well with your Existing Exhaust System.
  • [Upgrated Designed!!] - 1. The shell is made of stainless steel to prevent the oxide scale from falling off and causing the carrier to block. 2. The internal substrates and precious metal loading have been carefully engineered for maximum efficiency and to avoid MIL code issues. 3. Damping layer seal and fix the carrier, prevents vibration, thermal deformation, etc. from causing damage to the carrier. 4. Internal honeycomb structure for maximum flow and surface area for fully react.
  • [FUNCTION] - It is installed in the exhaust pipe of the engine. Through oxidation reaction, reduction reaction, water-based gas reaction and water vapor modification reaction, the three harmful exhaust gases CO, HC and NOx emitted by the engine are converted into harmless water, carbon dioxide and nitrogen, so it is also called the three-way (effect) catalytic converter.
  • [NOTE ] - Federal EPA compliant Appproved, Not for CA&NY(Non CARB compliant, Not legal for use on vehicles required to meet California emission standards).

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Last update on 2021-03-07 at 11:13 / Affiliate links / Images from Amazon Product Advertising API